21. Specification for harmonized system of quality assessment for electronic components. Blank detail specification: ambient rated thyristors. (15th February 1983) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (22 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
22. Specification for harmonized system of quality assessment for electronic components. Blank detail specification: case-rated thyristors. (15th July 1983) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (22 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
23. Specification for semiconductor rectifier equipments. (28th February 1969) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
24. Specification for transformer rectifier units. (31st March 1970) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
25. Thyristor valves for high voltage direct current (HVDC) power transmission. Essential ratings (limiting values) and characteristics (28th August 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (35 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
26. Thyristor valves for high voltage direct current (HVDC) power transmission. Terminology Part 2, (11th March 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (34 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
27. Uninterruptible power systems (UPS). Safety requirements Part 1, (17th February 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (82 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
28. Uninterruptible power systems (UPS). Safety requirements Part 1, (25th November 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (78 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗